Add missing built-in PHP interfaces for exclusion

.gitignore

@@ -17,3 +17,4 @@ scratch
 pcov.sh
 xdebug.sh
 7.4linux.sh
+scripts/builtins.php

scripts/getbuiltinphp.php

@@ -0,0 +1,85 @@
+<?php
+/**
+ * Get all built-in PHP classes, interfaces, traits.
+ */
+
+$outputFile = __DIR__ . '/builtins.php';
+
+$builtins = file_exists($outputFile) ? require $outputFile : [];
+
+$currentPhpVersion = implode(
+    '.',
+    array_slice(
+        explode('.', phpversion()),
+        0,
+        2
+    )
+);
+
+if (!isset($builtins[$currentPhpVersion])) {
+    $builtins[$currentPhpVersion] = [
+        'classes' => [],
+        'interfaces' => [],
+        'traits' => [],
+    ];
+}
+
+$classes = array_filter(
+    get_declared_classes(),
+    function (string $className): bool {
+        $reflector = new \ReflectionClass($className);
+        return empty($reflector->getFileName());
+    }
+);
+
+$interfaces = array_filter(
+    get_declared_interfaces(),
+    function (string $interfaceName): bool {
+        $reflector = new \ReflectionClass($interfaceName);
+        return empty($reflector->getFileName());
+    }
+);
+
+$traits = array_filter(
+    get_declared_traits(),
+    function (string $traitName): bool {
+        $reflector = new \ReflectionClass($traitName);
+        return empty($reflector->getFileName());
+    }
+);
+
+
+// Remove classes, interfaces, traits that are built-in in this PHP version from future versions.
+foreach ($builtins as $phpVersion => $builtinsArray) {
+    if (version_compare($phpVersion, $currentPhpVersion, '>')) {
+        $builtins[$phpVersion]['classes'] = array_diff($builtinsArray['classes'], $classes);
+        $builtins[$phpVersion]['interfaces'] = array_diff($builtinsArray['interfaces'], $interfaces);
+        $builtins[$phpVersion]['traits'] = array_diff($builtinsArray['traits'], $traits);
+    }
+}
+
+// Remove from this PHP version's built-ins list classes, interfaces, traits that exist in older versions.
+foreach ($builtins as $phpVersion => $builtinsArray) {
+    if (version_compare($phpVersion, $currentPhpVersion, '<')) {
+        $classes = array_diff($classes, $builtinsArray['classes']);
+        $interfaces = array_diff($interfaces, $builtinsArray['interfaces']);
+        $traits = array_diff($traits, $builtinsArray['traits']);
+    }
+}
+
+$builtins[$currentPhpVersion]['classes'] = array_unique(array_merge($builtins[$currentPhpVersion]['classes'], $classes));
+$builtins[$currentPhpVersion]['interfaces'] = array_unique(array_merge($builtins[$currentPhpVersion]['interfaces'], $interfaces));
+$builtins[$currentPhpVersion]['traits'] = array_unique(array_merge($builtins[$currentPhpVersion]['traits'], $traits));
+
+foreach ($builtins as $phpVersion => $builtinsArray) {
+    asort($builtins[$currentPhpVersion]['classes']);
+    asort($builtins[$currentPhpVersion]['interfaces']);
+    asort($builtins[$currentPhpVersion]['traits']);
+}
+
+
+$outputText = '<?php' . PHP_EOL . 'return ' . var_export($builtins, true) . ';';
+
+$outputText = preg_replace('/\d+\s=>\s/', '', $outputText);
+
+file_put_contents($outputFile, $outputText);